390117488784 has 20 divisors (see below), whose sum is σ = 1007803512816. Its totient is φ = 130039162912.

The previous prime is 390117488753. The next prime is 390117488791. The reversal of 390117488784 is 487884711093.

It is a super-3 number, since 3×390117488784³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4063723794 + ... + 4063723889.

Almost surely, 2^390117488784 is an apocalyptic number.

It is an amenable number.

390117488784 is an abundant number, since it is smaller than the sum of its proper divisors (617686024032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390117488784 is a wasteful number, since it uses less digits than its factorization.

390117488784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127447694 (or 8127447688 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 390117488784 in words is "three hundred ninety billion, one hundred seventeen million, four hundred eighty-eight thousand, seven hundred eighty-four".